For various reasons, I've become a fan of Amazon as a place to shop for physical book, so buying Kindle books would be a natural choice.
However, based on my experience with the Kindle app on an Android phone, and other factors, I don't want to use a Kindle or Kindle app as my primary means for reading ebooks. I give Amazon enough information about myself when I shop. Using a product that they own and that has the potential to know everything that I read is just too much.
Can I read Kindle books without Amazon software (for example, on an Android tablet or iPad)? Can I do it legally?
(These may be naive questions. I admit that I am still pretty naive about ebooks.)